World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128376 participants
PhysTech 2025: Physical Activity and Technology Hack Day Online Move, Inspire and Innovate! Demonstrate your talent and showcase your hack for physical activity. Non-monetary prizes Winners announced 348 participants
DevNetwork [AI + ML] Hackathon 2025 South San Francisco, CA, USA Join the nation's largest challenge-driven in-person and online hackathon @ AI DevSummit 2025! $12,500 in prizes May 12 – 29, 2025 841 participants
Perplexity Hackathon Online Create an internet-enabled project to inspire curiosity, seek knowledge, or reason through complex tasks. $35,000 in prizes Winners announced 4360 participants
Watson Developer Challenge: Conversational Applications Online Enable natural interaction with your app using a conversational interface powered by the Watson Developer Cloud APIs. $6,750 in prizes Winners announced 426 participants
Hack@Brown 2016 Providence, RI, USA A different kind of hackathon. Non-monetary prizes Feb 6 – 7, 2016 254 participants
YHack 2015 New Haven, CT, USA YHack 2015 is the third iteration of Yale's premiere hackathon. For 36 hours, 1500 of the best hackers will converge at Yale University to compete for over $15,000 in prizes. $14,650 in prizes Nov 7 – 8, 2015 420 participants
Hack the North 2015 Waterloo, Canada Canada's Largest Hackathon - University of Waterloo $30,350 in prizes Sep 18 – 20, 2015 730 participants
The MTA and AT&T Present: App Quest 3.0 Online More data. More connectivity. More smartphone apps. Make New York’s transit experience three times better. $50,000 in prizes Winners announced 279 participants
Hack the Trackers New York, New York, USA Privacy to the People $3,116 in prizes Nov 7 – 8, 2014 35 participants